For many people, Wolff-Parkinson-White syndrome doesn't cause significant problems. But complications can occur, and it's not always possible to know your risk of serious heart-related events. If the disorder is untreated, and particularly if you have other heart conditions, you may experience:

  • Fainting spells (syncope)
  • Fast heart beats (tachycardia)
  • Rarely, sudden death
March 19, 2014